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1. US20090016401 - COMBUSTION STATE DETERMINING APPARATUS AND METHOD FOR CATALYTIC COMBUSTION UNIT

Office
United States of America
Application Number 12278056
Application Date 07.02.2007
Publication Number 20090016401
Publication Date 15.01.2009
Publication Kind A1
IPC
G01N 25/22
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25Investigating or analysing materials by the use of thermal means
20by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
22on combustion or catalytic oxidation, e.g. of components of gas mixtures
F23C 13/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
13Apparatus in which combustion takes place in the presence of catalytic material
Applicants NISSAN MOTOR CO., LTD.
Inventors Hamada Karuki
Sakiyama Nobuo
Agents YOUNG &; BASILE, P.C.
Priority Data 2006029538 07.02.2006 JP
Title
(EN) COMBUSTION STATE DETERMINING APPARATUS AND METHOD FOR CATALYTIC COMBUSTION UNIT
Abstract
(EN)

An apparatus and method for determining a combustion state includes a catalytic combustion unit for mixing an anode off-gas discharged from a fuel pole of a fuel cell and an oxidizing agent gas, and having a catalytic unit for performing combustion processing. An upstream temperature detecting unit detects a gas temperature at an upstream side of the catalytic unit, and a gas-phase combustion determining unit compares at least one of the gas temperature detected by the upstream temperature detecting unit and a rate of upstream temperature increase with a determining reference value to determine if gas-phase combustion occurs at the upstream side of the catalytic unit.